I am using Ajax (and jQuery UI) and when i press a button on the dialog i trigger the following action in the controller:
[HttpPost]
public JsonResult DeletePost(int adrId)
{
return Json("Hello World Json!", JsonRequestBehavior.DenyGet);
}
My JQuery Code looks like this:
<script type="text/javascript">
$(document).ready(function () {
$("#dialog").dialog(
{
buttons: {
"Ok": function () {
$.ajax({
url: '/Home/DeletePost',
type: 'POST',
data: { adrId: 6 },
dataType: 'json',
contentType: 'application/json; charset=utf-8',
error: function (xhr) {
alert('Error: ' + xhr.statusText);
},
success: function (result) {
CheckIfInvoiceFound(result);
},
async: true,
processData: false
});
$(this).dialog("close");
}
}
});
jQuery('.delete').click(function () {
})
})</script>
However, when i POST to the server, i get an "Error: Not Found"
The problem is with your data parameter not being a valid JSON payload.
It is not valid JSON, because jQuery is using the jQuery.param() method internally to prepare the request parameters for typical POST submissions, and it will get converted to the following string:
adrId=6
However, the server is expecting a JSON payload, and what you specified is clearly not a JSON payload. A valid JSON payload would be:
{ 'adrId': 6 }
One approach to send correct JSON in the data parameter is to refactor your jQuery AJAX to look like this:
$.ajax({
url: '/Home/DeletePost',
type: 'POST',
data: "{ 'adrId': 6 }",
dataType: 'json',
contentType: 'application/json; charset=utf-8',
error: function (xhr) {
alert('Error: ' + xhr.statusText);
},
success: function (result) {
alert("success");
},
async: true,
processData: false
});
Or you can use JSON.stringify as suggested by others.
An alternative approach would be to send your data as 'application/x-www-form-urlencoded; charset=UTF-8' which is the default, and that way you don't have to change your data parameter. The code would be much simplified:
$.ajax({
url: '/Home/DeletePost',
type: 'POST',
data: { adrId: 6 },
error: function (xhr) {
alert('Error: ' + xhr.statusText);
},
success: function (result) {
alert("success");
},
async: true
});
JQuery will recognize that the result is valid JSON.
Try this:
<script type="text/javascript">
$(document).ready(function () {
$("#dialog").dialog(
{
buttons: {
"Ok": function () {
$.ajax({
...
data: JSON.stringify({ adrId: 6 }),
...
});
$(this).dialog("close");
}
}
});
jQuery('.delete').click(function () {
})
})</script>
Related
I am trying to pass value from js to a method gateway in Home controller and I want the result back(Integer)
$.ajax({
url: '/Home/gateway?s=' + dates[],
type: 'POST',
dataType: 'json',
data: { id: 'value' },
success: function (data) {
alert("success");
},
error: function () {
alert('error');
}
});
You're passing url query parameters in a POST request which by design should expect a payload body. Why not add another property called dates inside of your data object and set its value to the dates array?
$.ajax({
url: '/Home/gateway',
type: 'POST',
dataType: 'json',
data: {
id: 'value',
dates
},
success: () => {
alert("success");
},
error: () => {
alert('error');
}
});
I have a view that takes a list of a model as the Model, so
#model List<Collections.Models.Status>
I want to pass this list as the data for an Ajax call, but I keep getting "System.Collections.Generic.List[Collections.Models.Status]" instead of the values in the model.
Here's the Ajax code:
$.ajax({
url: "/Home/Update",
data: JSON.stringify(#Model),
type: 'POST',
dataType: 'json',
success: function (responseJSON) {
if (responseJSON.message == 'success') {
alert('here');
}
},
error: function (error) {
showModal("Error: " + error.message);
}
});
Which translates in the debugger to:
$.ajax({
url: "/Home/Update",
data: JSON.stringify(System.Collections.Generic.List`1[Collections.Models.CollectionStatus]),
type: 'POST',
dataType: 'json',
success: function (responseJSON) {
if (responseJSON.message == 'success') {
alert('here');
}
},
error: function (error) {
showModal("Error: " + error.message);
}
});
How do I pass the actual values of the list instead of System.Collections.Generic.List[Collections.Models.Status]?
I've tried #Model.ToList(), #Html.Raw(Model), neither worked.
set contentType property to application/json.
and use below code to set data property
data: JSON.stringify({'your controllers parameter name': '#Model'})
All,
I am new to MVC. I have built an application where a button click performs
get market data (lengthy operation).
data message and upload to database.
This is what the JavaScript function looks like:
function OnClick(s, e) {
if (true) {
$.ajax({
type: "POST",
url: "#Url.Action("DataFileUpload", "ImportData")",
data: JSON.stringify({ positionDate: positionDate }),
dataType: "text",
contentType: "application/json; charset=utf-8",
beforeSend: function () { lpImport.Show(); },
success: function (msg) {
ImportDataGridView.PerformCallback();
ImportSuccessMessage.SetVisible(true);
ImportSuccessMessage.SetText(msg);
lpImport.Hide();
},
error: function (xhr) {
alert(xhr)
ImportDataGridView.PerformCallback();
}
});
}
}
What is happening right now is - When users close the browser in the middle of the run, controller action is still running. I can see that in my log.
How do I make browser close to stop running my controller action DataFileUpload ?
Thanks for helping out.
you can use the abort function from the XMLHttpRequest that $.ajax() returns.
abort(). If the request has been sent already, this method will abort the request.
Something like:
var xhr;
function OnClick(s, e) {
if (true) {
xhr = $.ajax({
type: "POST",
url: "#Url.Action("DataFileUpload", "ImportData")",
data: JSON.stringify({ positionDate: positionDate }),
dataType: "text",
contentType: "application/json; charset=utf-8",
beforeSend: function () { lpImport.Show(); },
success: function (msg) {
ImportDataGridView.PerformCallback();
ImportSuccessMessage.SetVisible(true);
ImportSuccessMessage.SetText(msg);
lpImport.Hide();
},
error: function (xhr) {
alert(xhr)
ImportDataGridView.PerformCallback();
}
});
}
}
function closeBrowser() {
xhr.abort();
}
but this will only cancel the event on the client. You should also cancel the request on the serverside.
I have this at my controller:
[HttpPost]
[ValidateAntiForgeryToken]
public async Task<ActionResult> DeleteUser(UserViewModel viewModel)
{
}
I have this at my cshtml:
<input type="button" id="btnDelete" value="Delete" />
I have this at my js file:
$('#btnDelete').click(function (e) {
});
How do I call controller function from js file?
$.post("Controller/CreateUser", dataToPost)
.done(function(response, status, jqxhr){
// this is the "success" callback
})
.fail(function(jqxhr, status, error){
// this is the ""error"" callback
});
or
var data = {
username: $('#username').val().trim(),
password: $('#password').val()
};
$.ajax({
type: "POST",
url: "Controller/CreateUser",
content: "application/json;",
dataType: "json",
data: JSON.stringify(data),
success: function(d) {
},
error: function (xhr, textStatus, errorThrown) {
}
});
ps: compose the data object according to the UserViewModel properties.
Inside the button click, execute ajax request
$('#btnDelete').click(function (e) {
$.ajax({
type: "POST",
url: 'controller/DeleteUser',
dataType: "json",
success: function(data){
//html content
},
});
}
It's very easy to access any controller method using ajax post method.
As here I'm getting states as per selected country using
'RegionesController' method name 'GetStates' also here I'm passing
CountryId to get states as per this id.
EX:
function GetStates() {
$.ajax({
type: "POST",
async: false,
url: abp.appPath + 'Regiones/GetStates?CountryId=' + $("#ddlCountry").val(),
success: function (result) {
//return data or object
},
error: function (err) {
abp.notify.info(err.statusText);
}
});
}
I have a canvas in my .aspx form page where one can sign a signature, I would like to send the base64 data from the JQuery client side to the C# Asp.Net side. Here I want to upload this base64 data to a database.
(a couple things I tried)
Jquery:
$("#savebtn").bind("click", function () {
var base64 = $('#sketch')[0].toDataURL("image\png");
$.ajax({
url: 'EvaluatieForm.aspx', // page where i have button listenener
data: '{ data: "' + base64 + '"}',
type: 'POST',
async: true,
cache: false,
contentType: "application/json; charset=utf-8",
success: function (result) {
console.log("inside sucess");
console.log("result: " + result);
},
error: function (request, error) {
// This callback function will trigger on unsuccessful action
alert('Error!');
}
});
$.post("EvaluatieForm.aspx", { data: base64 }); // another thing i tried
C#:
var d = Request.Params["data"];
The variable d is null when i put a breakpoint at it.
Does anybody see how I can tackle this hurdle, or make it easier?
(note: I do not have a lot of experience with JQuery)
Your JSON with base64 could be available as request body.
using (StreamReader reader = new StreamReader(context.Request.InputStream))
{
string text = reader.ReadToEnd();
}
If you replace
url: 'EvaluatieForm.aspx'
by
url: 'EvaluatieForm.aspx?data=' + base64
and remove
data: '{ data: "' + base64 + '"}',
then it will work.
Try this:
Just a small change in your existing code, used JSON.stringify to post data.
$("#savebtn").bind("click", function () {
var base64 = $('#sketch')[0].toDataURL("image\png");
var objectToPasss = {data: base64};
var postData =JSON.stringify(objectToPasss );
$.ajax({
url: 'EvaluatieForm.aspx', // page where i have button listenener
data: postData,
type: 'POST',
async: true,
cache: false,
contentType: "application/json; charset=utf-8",
success: function (result) {
console.log("inside sucess");
console.log("result: " + result);
},
error: function (request, error) {
// This callback function will trigger on unsuccessful action
alert('Error!');
}
});
$.post("EvaluatieForm.aspx", { data: base64 });
Try this:
$("#savebtn").bind("click", function () {
$.ajax({
url: 'EvaluatieForm.aspx', // page where i have button listenener
data: {
sketch: $('#sketch')[0].toDataURL("image\png")
},
type: 'POST',
async: true,
cache: false,
contentType: "application/json; charset=utf-8",
success: function (result) {
console.log("inside sucess");
console.log("result: " + result);
},
error: function (request, error) {
// This callback function will trigger on unsuccessful action
alert('Error!');
}
});
where
var d = Request.Params["sketch"];
The data argument in the jQuery ajax() function works in conjunction with the contentType. As you are setting it to application/json, then it stands to reason that data will be serialized, so setting the sketch variable seems about right.
With ajax you can try xhr.
maybe this thread helps you out! :)
How can I upload files asynchronously?